I am experimenting with this quite large factory environment scene:
Here is my first RTX real-time render:
What I would need for shot like this is:
animate fog distance and instensity
adjust and animate camera iris. Now you have a f-stop but it is only effecting
the DOF, not the exposure of camera.
As you can see the hall is a bit too bright from inside, and cannot control that now.
Automatic exposure is a nice idea, but it pumps too much no matter what speed setting I used.